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Providers are prepackaged mini-apps you mount onto any server with one line: 
import { FastMCP, Approval, Choice, FileUpload, FormInput } from '@prefecthq/fastmcp-ts/server'

const server = new FastMCP({ name: 'my-server' })

server.addProvider(new Approval())    // confirm/deny card
server.addProvider(new Choice())      // clickable option list
server.addProvider(new FileUpload())  // drag-and-drop picker
server.addProvider(new FormInput())   // auto-generated validated form
This page is under construction. The outline below sketches what it will cover.
  • Approval — confirm/deny card whose outcome is injected back into the conversation.
  • Choice — clickable option list; each option button carries its value as tool arguments.
  • FileUpload — drag-and-drop file picker; file bytes are stored via a FileStorageAdapter and never pass through the LLM; handles tracked in session state.
  • FormInput — renders a validated form from any Standard Schema (Zod, Valibot, ArkType); submissions are validated server-side with the same schema.